CIRCUIT DESCRIPTION
The suspension control ECU opens the height control valve to lead the compressed air to the pneumatic
cylinder and raise the vehicle height.
When the vehicle height is lowered, the suspension control ECU opens the height control valve to store the
compressed air in the low pressure tank temporarily, and then operates the exhaust solenoid valve to release
the compressed air to the outside.
Further, the height control solenoid valve (gate solenoid valve) opens and closes the passage between the
right and left pneumatic cylinder.
The height control valve is on the low pressure tank and consists of 3 valves in total, leveling solenoid valve,
gate solenoid valve and tank solenoid valve.
The leveling solenoid valve opens and close the passage between the compressor and the pneumatic cylin-
der. The gate solenoid valve opens and close the passage between the right and left pneumatic cylinder.
The tank solenoid valve opens and closes the passage between pneumatic cylinder and the low pressure
tank. The exhaust solenoid valve is on the compressor unit and has only one valve
Gate solenoid valve
Gate solenoid valve circuit
Suspension control ECU
Oradek lj73 2LT-II